No I meant convert.. now that I know that. After upgrading to RTM can it be Pro+WMC? In other words Do I need to activate before the upgrade?Ty two for the replys

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Every single file (nearly) in CP is different from RTM... (there is NO such thing as conversion to RTM)
Make a clean disk, then install RTM and activate with key you've bought to avoid rubbish from deprecated version.